test-manual: Add a missing dot

Correct "oeqa.utils.commandsrunCmd()" to "oeqa.utils.commands.runCmd()".

(From yocto-docs rev: 4ecdfd0000308a71697abc099ed6e37af907051d)

Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/test-manual/intro.rst

@@ -380,7 +380,7 @@ with common tasks, including:
 -  *Running a bitbake invocation for a build:* Use
    ``oeqa.utils.commands.bitbake()``
 
--  *Running a command:* Use ``oeqa.utils.commandsrunCmd()``
+-  *Running a command:* Use ``oeqa.utils.commands.runCmd()``
 
 There is also a ``oeqa.utils.commands.runqemu()`` function for launching
 the ``runqemu`` command for testing things within a running, virtualized